Hi, Where would you suggest I buy a 1 GB RAM chip for my 12" PB? Most places like crucial etc dont even have a 1 GB Chip for the 12" PB. And some other places said 1 GB, but then the fine print said 2 X 512 MB and thats not what I want. The 12" PBs only have 1 expansion slot. So please let me know where I can get this! Thanks!